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libcamera: mali-c55: Limit ISP input size

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The Mali-C55 ISP has a minimum input size limit of 640x480.

Filter out resolutions smaller than this when selecting the
sensor format. While at it, rename 'maxYuvSize' to a more
appropriate 'minSensorSize'.

Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
This commit is contained in:
Jacopo Mondi 2024-11-15 10:13:22 +00:00 • committed by Daniel Scally
parent a10fcffcca
commit 0caaf7498d
1 changed files with 23 additions and 15 deletions
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38
src/libcamera/pipeline/mali-c55/mali-c55.cpp
View file

@ -79,6 +79,7 @@ const std::map<libcamera::PixelFormat, unsigned int> maliC55FmtToCode = {
{ formats::SGRBG16, MEDIA_BUS_FMT_SGRBG16_1X16 },
};
constexpr Size kMaliC55MinInputSize = { 640, 480 };
constexpr Size kMaliC55MinSize = { 128, 128 };
constexpr Size kMaliC55MaxSize = { 8192, 8192 };
constexpr unsigned int kMaliC55ISPInternalFormat = MEDIA_BUS_FMT_RGB121212_1X36;
@ -264,13 +265,16 @@ PixelFormat MaliC55CameraData::adjustRawFormat(const PixelFormat &rawFmt) const
return rawFmt;
}
Size MaliC55CameraData::adjustRawSizes(const PixelFormat &rawFmt, const Size &rawSize) const
Size MaliC55CameraData::adjustRawSizes(const PixelFormat &rawFmt, const Size &size) const
{
/* Just make sure the format is supported. */
auto it = maliC55FmtToCode.find(rawFmt);
if (it == maliC55FmtToCode.end())
return {};
/* Expand the RAW size to the minimum ISP input size. */
Size rawSize = size.expandedTo(kMaliC55MinInputSize);
/* Check if the size is natively supported. */
unsigned int rawCode = it->second;
const auto rawSizes = sizes(rawCode);
@ -281,14 +285,14 @@ Size MaliC55CameraData::adjustRawSizes(const PixelFormat &rawFmt, const Size &ra
/* Or adjust it to the closest supported size. */
uint16_t distance = std::numeric_limits<uint16_t>::max();
Size bestSize;
for (const Size &size : rawSizes) {
for (const Size &sz : rawSizes) {
uint16_t dist = std::abs(static_cast<int>(rawSize.width) -
static_cast<int>(size.width)) +
static_cast<int>(sz.width)) +
std::abs(static_cast<int>(rawSize.height) -
static_cast<int>(size.height));
static_cast<int>(sz.height));
if (dist < distance) {
dist = distance;
bestSize = size;
bestSize = sz;
}
}
@ -375,8 +379,13 @@ CameraConfiguration::Status MaliC55CameraConfiguration::validate()
frPipeAvailable = false;
}
/* Adjust processed streams. */
Size maxYuvSize;
/*
* Adjust processed streams.
*
* Compute the minimum sensor size to be later used to select the
* sensor configuration.
*/
Size minSensorSize = kMaliC55MinInputSize;
for (StreamConfiguration &config : config_) {
if (isFormatRaw(config.pixelFormat))
continue;
@ -398,8 +407,8 @@ CameraConfiguration::Status MaliC55CameraConfiguration::validate()
status = Adjusted;
}
if (maxYuvSize < size)
maxYuvSize = size;
if (minSensorSize < size)
minSensorSize = size;
if (frPipeAvailable) {
config.setStream(const_cast<Stream *>(&data_->frStream_));
@ -415,7 +424,7 @@ CameraConfiguration::Status MaliC55CameraConfiguration::validate()
if (rawConfig) {
const auto it = maliC55FmtToCode.find(rawConfig->pixelFormat);
sensorFormat_.code = it->second;
sensorFormat_.size = rawConfig->size;
sensorFormat_.size = rawConfig->size.expandedTo(minSensorSize);
return status;
}
@ -429,14 +438,13 @@ CameraConfiguration::Status MaliC55CameraConfiguration::validate()
const auto sizes = data_->sizes(it->second);
Size bestSize;
for (const auto &size : sizes) {
/* Skip sensor sizes that are smaller than the max YUV size. */
if (maxYuvSize.width > size.width ||
maxYuvSize.height > size.height)
if (minSensorSize.width > size.width ||
minSensorSize.height > size.height)
continue;
uint16_t dist = std::abs(static_cast<int>(maxYuvSize.width) -
uint16_t dist = std::abs(static_cast<int>(minSensorSize.width) -
static_cast<int>(size.width)) +
std::abs(static_cast<int>(maxYuvSize.height) -
std::abs(static_cast<int>(minSensorSize.height) -
static_cast<int>(size.height));
if (dist < distance) {
dist = distance;